Assuming that my starter is ok, as described above, I'll move on to cables and grounds.
It appears that my positive battery cable is a size smaller than the ground cable. That ground cable goes to the frame under the cab.
My starter is ground to the frame in the engine bay.
I'll clean the contacts on the starter ground first.
From your comments, it seems like I need more ground contact points. Is that correct? Battery to block then frame? What should I change? Or could I add a battery ground cable from my current frame attachment point to the block?
